baber/WOPTO huggingface dataset:
Patent GB-764608-A (GB)
Title: Improvements in and relating to protective devices for prime movers
Inventor: RUMSAN CECIL GEORGE
IPC: H02P9/02
Filed: 1954-06-14
Abstract: 764,608. Indicating working conditions. BRITISH BROADCASTING CORPORATION. June 1, 1955 [June 14, 1954], No. 17472/54. Class 7 (2). [Also in Group XXVI] A prime mover is provided with means responsive to the relationship between the fuel supply to the prime mover and the power output of the prime mover, over a wide range of power output, to give a visual or audible indication or to stop the prime mover or to reduce the fuel supply to a low value, when the ratio of the fuel supply to the output power exceeds a predetermined value, as will occur if, for example, there is an increase in friction in the prime mover. As described applied to a diesel engine driving an electrical generator, when an increase in load on the generator decreases the speed of the engine a centrifugal governor acts on the fuel pump to increase the fuel supply ; the governor is mechanically coupled to a potentiometer 11 so that the current supply to a coil 19 is also increased. Increase in current in the coil 19 exerts on a switch arm 21 a force tending to raise the arm and break its engagement with the contact 23. A watt-meter 24 is connected to the generator and exerts upon the switch arm spindle 22 a torque proportional to the generator output power and in the opposite sense to the torque produced by the coil 19. A bias spring 26, which is preferably adjustable, is provided to assist the watt-meter 24, the torque applied by the spring being about 10 per cent. of the full load torque of the watt-meter. If the torque produced by the coil 19 exceeds the watt-meter torque by a 10 per cent. of the full load torque, the contact 23 is broken, and a relay A/2 is released, thus operating contacts A1 and A2 so that an alarm bell is sounded and a green lamp 29 is extinguished. If the torque exerted by the coil 19 exceeds that of the watt-meter by 15 per cent., the arm 21 engages the contact 27 and a relay B/2 is operated. A switch B1 is then moved to discharge a capacitor 31 to relays C/2 and D/2 which operates tripping solenoid and a circuit breaker so that the engine is shut down and the generator takenoff load. At the same time a contact B2 lights a red lamp 34. The spindle 22 may be damped by an induction disc mounted on it and located in the field of a permanent or electro magnet. The wiper arm 10 of the potentiometer may be lightly spring loaded in one direction and, if desired a flexible coupling may be provided between the wiper arm and the lever system of the governor. The Provisional Specification describes also two watt-meters coupled together, in place of the single watt-meter and coil 19.
Patent GB-1461485-A (GB)
Title: Agricultural implements
IPC: F16D67/00
Filed: 1974-04-22
Abstract: 1461485 Mowers INTERNATIONAL HARVESTER CO 22 April 1974 [25 April 1973] 17501/74 Addition to 1361330 Heading A1F [Also in Division F2] When the blade 22 of a mower, Fig. 2, is being driven counter-clockwise (as seen from beneath Fig. 2) by a belt-driven pulley 44, a brake member 50 positively rotated with a drive member 31 secured to the pulley is first urged upwards and then retained in its uppermost position by mutual engagement of threads 51, 29, on the brake member 50 and a sleeve 25 secured to an output shaft 15, respectively, in consequence of progressive movement of slots 32, Fig. 3, in member 31 relative to pins 27 on sleeve 25, Fig. 4, as the drive is taken up. When driving of pulley 44 ceases, shaft 15 over-runs member 31, pins 27 thereupon moving to ends 63 of slots 32. Brake member 50 may move only axially relative to member 31 by reason of pin-andsocket connections 61, 60, so brake member 50 is "wound down" by interengaging threads 51, 29 until it makes contact with a rotationallyfixed, but vertically spring-supported insert 54 having a braking surface 53, Fig. 2.
Patent GB-264396-A (GB)
Title: Improvements in or relating to washing machines and the like
IPC: D06F33/04
Filed: 1926-07-14
Abstract: 264,396. Perrett, I. G., and Broom, A. G. July 14, 1926. Valves controlled by relay valves.-Supply and drain valves for washing and laundry machines are operated automatically by fluid pressure admitted to operating cylinders n by relay valves mounted in a junction box and actuated by cams h on discs g on an electrically driven control shaft f. The relay valves comprise a tappet i on a piston i<1> working in a chamber having admission ports k<1> outlet ports m and exhaust ports m<1>. A spring loaded disc valve j normally shuts off the outlet, which is in free communication with the exhaust, from the admission. Each valve j has its stem engaged by the piston i after this has shut off the outlet m from the exhaust m<1>. The valves work in a series of chambers k with separate outlet and common admission and exhaust valves. A pipe m<2> connected in turn with the outlet and exhaust connects the outlet m to the operating cylinder n so that the pressure moves the piston n<1> therein so that the piston rod n<2> operates the lever o actuating the main supply or drain valve p<1>. The stroke of the piston n may be varied bv a screwed guide bush. The coupling b between the drive and the control shaft f may be broken by lifting the key t<1> by a key t lifted after one revolution by a wedge s on a spindle r on a roller-fitted arm q moved by a striker p on the primary shaft c. The cams may be adjusted in grooves on the discs g. The relay valve may be formed as a differential pair of pistons i<2>, i<3> mounted on a tappet i and working in cylinders k, k<1>, the fluid pressure being admitted constantly from the port l<1> and allowed access to the outlet m only on actuation of a cam k. Specification 168,294, [Class 138(ii), Washing, mangling, &c.], is referred to.
Patent GB-716399-A (GB)
Title: Improvements relating to diaphragm pumps
Inventor: KENT RAYMOND LESLIE
IPC: F02M59/14
Filed: 1952-07-12
Abstract: 716,399. Diaphragm pumps. S. U. CARBURETTER CO., Ltd. May 8, 1953 [July 12, 1952], No. 17644/52. Class 102 (1). In a diaphragm pump, the diaphragm 10 defines two chambers 11, 14, the chamber 11 being the pumping chamber and fitted with inlet and outlet valves 12, 13, and the chamber 14 being connected by passage 15 to the cylinder 5 in which a piston 6, loaded by a spring 7, is reciprocated by a cam 8. The diaphragm is actuated by the compression and rarefraction of the air in chamber 14 which has two passages 16, 17, one of which is connected to atmosphere at the end of each stroke of the piston 6 by a groove 18 either through passages 19, 20, or groove 21 in the cylinder wall.
Patent GB-816440-A (GB)
Title: Improvements in or relating to the storage of liquids
IPC: B65D88/78
Filed: 1956-06-07
Abstract: 816,440. Floating storage chambers. WIMPEY & CO. Ltd., G., and ROSE, N. K. June 7,1956, No. 17669/56. Class 113. Liquids lighter than and immiscible with water, such as crude petroleum oils, are stored inside a vertical cylindrical wall 4 open at its lower end and supported by pontoon floats 1 so that its upper edge is above the water surface. In the embodiment shown a roof 6 also provided with floats (not shown) is sealed to the top of the wall 4 by a flexible plastic bellows 7 ; alternatively a sliding seal may be used, or the oil may be covered with a plastic blanket or hollow plastic granules. A pipe 8 with aperture 11 (or alternatively a pipe 15) allows oil to be charged or discharged and a drainpipe 13 is provided for carrying away rain collecting on the roof. The wall 4 and roof 6 may be built up from steel plates, or be constructed of aluminium, resin-bonded fibreglass, or oilresistant fabric or plastic material.
Patent GB-165788-A (GB)
Title: An improved process for the manufacture of decolourising charcoal of high activity
IPC: C01B31/08
Filed: 1921-06-29
Abstract: 165,788. Adler, R. July 5, 1020, [Convention date]. Waste products, treatment and utilization of -Sulphite-cellulose waste liquor, or the residue from the sulphite-alcohol process, is treated for the production of decolorizing carbon, by precipitating the organic matter by the addition of neutral salts such as potassium or sodium chloride, or of alkaline-earth hydrates, separating the precipitate by filtration, adding alkali compounds such as hydrates, carbonates, phosphates, sulphates &c. to convert the organic matter into soluble form, filtering if necessary and carbonizing. The carbonized product is either leached and dried, and the solution of alkali sulphide obtained treated with carbon dioxide to form alkali carbonate for re-use in the process, or the latter operation is carried out before the removal of the charcoal. Specification 6652/12.. [Class 1 (ii), Inorganic compounds, other than &c.], is disclaimed.
Patent GB-834478-A (GB)
Title: Improvements in or relating to apparatus for grading articles by weight
IPC: B07C5/18
Filed: 1957-06-04
Abstract: 834,478. Weighing apparatus. BLAKE, M. V. May 6, 1958 [June 4, 1957], No. 17775/57. Class 143 In apparatus for grading eggs and other articles by weight, the eggs are released singly from a feedway 13, Fig. 1, by means of an escapement mechanism, Figs. 4, 5 (not shown), on to a cradle on a beam 18, supported on knife edges 17 and provided with a counterweight 21 which is adjusted to swing the beam 18 against the end of the feedway where it is engaged by a latch. When the cradle has received an egg, the latch is automatically released and allows the beam to swing through an angle determined by the weight of the egg, a pawl 35, Fig. 2, being provided on the cradle to engage one of a series of abutments 36 thereby releasing a catch 31 and allowing fingers 27 to drop the egg on to one of a number of guide channels 57 (Fig. 3), down which the egg rolls into an appropriate receptacle 58.
Patent GB-1089419-A (GB)
Title: A safety clutch
IPC: G05G15/08
Filed: 1966-04-22
Abstract: 1,089,419. Clutch control. BARMER MASCHINENFABRIK A.G. April 22, 1966 [April 24, 1965], No. 17796/66. Heading F2L. A drive transmission is interrupted by an electromagnetic or photo-electric switch controlled by the relative slip movement of the rotary members of an overload clutch carrying the switch-operating elements. As shown the clutch members carry disc sectors 8, 17 which normally overlap circumferentially, Fig. 2, to present a continuous disc rotating within a fixed electromagnetic or photo-electric switch control member 21. Upon the application of a predetermined overload torque to the clutch the resultant slip opens a circumferential gap between the members 8, 17 causing the main switch to be operated to break the drive to the clutch. In a modification, Figs. 3 and 4 (not shown), the switch is operated by a pair of discs provided with normally staggered peripheral cut-out portions which move into axial alignment when the overload torque is applied.
Patent GB-567337-A (GB)
Title: Speed governor, particularly intended for gramophones
IPC: G11B25/08
Filed: 1943-10-29
Abstract: 567,337. Speed governors. FALK, S. G. Oct. 29, 1943, No. 17933. [Class 57] A speed governor for gramophones &c. comprises weights 8 carried by springs, e.g. leaf springs 7, each weight containing a pair of balls 10 pressing against each other and against a disc 4 fixed to the shaft and a disc 11 supported by a spring pressing against a sleeve 15 secured to the shaft ; excessive speed causes the balls to raise the disc 11 and lift a brake plate 13 secured to it into contact with fixed brake blocks 18.
Patent GB-913925-A (GB)
Title: Improvements in or relating to torsional vibration dampers
Inventor: HIRST ARCHIE JOHN
IPC: F16F15/14
Filed: 1960-05-20
Abstract: 913,925. Torsional vibration dampers. METALASTIK Ltd. April 10, 1961 [May 20, 1960], No. 17961/60. Class 108(3). In a torsional vibration damper, generally of the kind described in Specification 786,789, the rubber, or like elastomer, vibration elements are non-uniformly, instead of equally, spaced between a ring-like inertia member 11 and a coaxial hub member 10. The vibration elements, each in the form of a bobbin comprising a pair of rubber discs 15 which are bonded to a metal interleaf 16 and to end plates 17, are clamped between the members 10, 11 in radial compression and are secured by studs 18 the inner ones of which engage in slots in the hub 10 to facilitate assembly. The compression forces in the bobbins maintain the inertia member 11 .coaxial with the hub 10. The radial stiffness of the damper along the vertical diameter, Fig. 1, is greater than that along a horizontal diameter depending upon the spacing between the bobbins 12a, 12b and 12b, 12c. Other balanced arrangements such as shown in Fig. 2 are also described and illustrated.
Patent GB-1474151-A (GB)
Title: Harmonic signal analyzer
IPC: G01R23/165
Filed: 1975-04-30
Abstract: 1474151 Analysis of frequency components of signals MINNESOTA MINING & Mfg CO 30 April 1975 [6 May 1974] 17964/75 Heading G1U For analyzing a signal to monitor a selected harmonic, the input signal is fed to a phase-locked loop along with a first reference frequency to provide a signal whose frequency is the sum of a selected multiple of the input fundamental frequency and the first reference frequency, which is mixed with a second reference signal (of slightly different frequency from the first), and the difference frequency signal amplitude indicates the amplitude of the selected harmonic. The input signal is normalized in input section 15 which includes an AGC amplifier 39 and passed to a modulator 65 where it is mixed with a signal whose frequency is close to the selected harmonic. This signal J is derived by a phase-locked loop 19 receiving the normalized input 21. The phase-detector output controls the frequency of oscillator 45 such that if output signal, after mixing with a reference frequency signal C and division in selectable dividers 51, 53 is in phase and frequency coherence with the input fundamental component. The divider 53 setting is used to select the harmonic being analyzed, and the divider 51 setting is automatically set 69, according to the frequency range in which the input fundamental frequency lies, to maintain the mixer 47 output is sufficiently high to ensure a positive locking of the loop. The signal B whose frequency is the sum of the reference frequency and fundamental multiplied by the two divider ratios, passes through a divider 55 (set equal to divider 51) to a modulator 61 where it is mixed with a filtered, pure line wave reference signal I, derived from an oscillator 57 of almost the same frequency as local oscillator 49 in the loop 19, the difference being 500Hz, through a divider 59 (again set equal to divider 51). The difference frequency output from the mixer 61 is selected by a low pass filter 63, whose pass-band is varied for the frequency range of the input, and has a frequency equal to the selected harmonic plus the reference difference frequency divided by the range setting divider factor. This signal is mixed with the input signal, low-pass filtered to select the lowfrequency component whose amplitude corresponds to the selected harmonic. By first selecting the fundamental and adjusting circuitry 31, the meter 33 can be set to read full-scale. Subsequently, after selecting any harmonic, the meter will indicate the percentage magnitude of the harmonic. By breaking the connection between the input circuit 15 and the loop 19, and feeding the loop and the modulator 65 with a variable frequency oscillator, the analyzer acts as a frequency selective amplifier for analyzing whole spectra, while retaining the automatic frequency ranging aspect.
Patent GB-278815-A (GB)
Title: Improvements in apparatus for the distillation of solvents in connection with the extraction of oils, fats, waxes and the like
IPC: C11B1/10
Filed: 1926-07-19
Abstract: 278,815. Simon, L. J., and Simon Bros. (Engineers), Ltd. July 19, 1926. Progressive evaporators.-Solvents used in the extraction of oils are recovered from the solution of oil and solvent, particularly that obtained from the apparatus described in Specification 255,923, [Class 91, Oils &c.]. by distillation in a preliminary still which controls automatically the supply of solvent to a number of smaller stills arranged in series, in parallel, or in series parallel. The preliminary still 1, Fig. 4, is connected to the usual condensers by a pipe not shown and by a pipe 6 to a number of smaller stills 3 arranged two or more in series, two sets of series being arranged in parallel. The still 1, Fig. 1, is heated by a steam coil 2 and the supply of solvent passing through the pipe 6 is controlled by a valve 5 comprising a pair of concentric perforated sleeves, the inner of which is rotated by a ball float 4 while the outer is adjustable by a rod 5<a>, the flow of solvent being thus adjusted automatically according to variations in the density and height of the solution. Each still 3, Fig. 2, is fitted with a tray 8 provided with baffles for the circulation of the solution delivered from a pipe 16, and is heated by open and closed steam coils 9, 7, the residue being delivered to the next still through a syphon 11, the position of which is controlled by a rod 13. Alternatively, the small stills may be arranged in one casing as a series of superposed trays 28 . . 32, Fig. 5, provided with spiral channels 33 and heating coils 35, and supplied with solvent from a preliminary still through an open tank 25 having a U-shaped discharge pipe 27.
Patent GB-518513-A (GB)
Title: Improvements in the construction of aeroplane wings
IPC: B64C3/00
Filed: 1938-06-17
Abstract: 518,513. Aircraft wings. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. June 17, 1938, No. 18100. [Class 4] A method of manufacturing a spar or other girder-like member for aircraft from straight strips of metal of uniform cross-section consists in cutting each strip obliquely to form two. tapering booms, each having at least one flat face, and fastening to such booms to a web so that a flat face of each booms engages a flat face of the web. The strip is shown in Fig. 1, Fig. 1a being a section. It is cut along the line 21 to give two identical tapering booms. Fig. 3 shows a plan of one boom. The part 23 is machined away to the line 24. By cutting a similar metal strip along the'other diagonal and machining as before, two further booms, of opposite hand to the first pair, are formed. One boom from each pair may then be taken and a tapering spar built up.by joining the booms 22 and 32 to a tapering web 35, Fig. 10. The chain dotted lines show the method of assembly for the spar of opposite hand from the remaining two booms. Alternatively, two booms of opposite hand may be produced from a single metal strip of asymmetrical section, as in Fig. 12a. A method of constructing a wing, shown in Fig. 11, consists of bracing the spar 32, 35, 22, forwardly by a stiff skin 36 constituting the leading edge of the wing. Rearward bracing is provided by a number of frames spaced along the wing and each comprising two tubes 37, 38, connected at their rear ends to a tube 39 running along the wing.
Patent GB-186183-A (GB)
Title: Improved piercing arrangements in attachable spouts for tins
IPC: B67B7/48
Filed: 1921-07-05
Abstract: 186,183. Rosenberg, B. July 5, 1921. Opening by cutting.-An attachable spout for tins has piercing points 6 to penetrate the tin and a stop 9 to limit penetration by thrusting and to ensure that the rest of the cutting operation shall take place by rotation in order that a worm 4 adapted to draw the rim of the hole against a washer 5 may not be thrust bodily thrcugh the hole in the opening operation.
Patent GB-733491-A (GB)
Title: Improvements in or relating to capacitor motors
IPC: H02K17/10
Filed: 1952-07-18
Abstract: 733,491. Cores for dynamo-electric machines. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 18, 1952 [July 23, 1951], No. 18208/52. Class 35. A capacitor motor has four shaded poles 2-5 with poleshoes 12-15 magnetically interconnected, the shading coils 16-19 being so disposed that the shaded parts of poles are. equal in length to the remaining unshaded parts. In a modification, each pole has two short-circuited windings, the smaller of which has a larger copper section than the other and covers a third of the polar region while the larger winding covers two-thirds of the polar region. The secondary member may be a squirrel cage or hysteresis rotor. U.S.A. Specification 2,388,884 is referred to.
Patent GB-705519-A (GB)
Title: Improved rear wheel suspension for motor vehicles
IPC: B60G21/055
Filed: 1951-08-01
Abstract: 705,519. Spring suspensions; preventing lateral canting FIAT SOC PER AZIONI. Aug. 1, 1951 [Aug. 4, 1950], No. 18219/51. Class 108(2) In a vehicle suspension comprising a rigid axle between two rear wheels, helical springs between the axle and a vehicle frame and resilient rods connecting the axle with the frame, each of the rods is bent in a substantially vertical plane and is connected at its ends to the frame and axle respectively so as to be subjected to bending stresses only. In the arrangement shown, in which an axle 2 is supported on arms 30 hinged to frame members 1 and helical springs 80 are interposed between the axle and frame, two rods 5, are each hinged at one end about a pivot 6 to the axle and at the other end about a pivot 7 to the frame. The pivots 6 for the rods 5 comprise anti-vibration bearings enclosed in eye-shaped ends of the rods and bushes, enclosed in a casing attached to a differential casing 3. The pivots 7 comprise resilient bearings in eye-shaped ends of the rods clamped on a rod secured to the frame. The rods may be arc or S-haped. The connections of the rod ends may be reversed. Specification 645,986 is referred to.
Patent GB-354920-A (GB)
Title: Improvements in road traffic regulating or signalling apparatus
IPC: G08G1/085
Filed: 1930-06-14
Abstract: 354,920. Road-traffic signals. REVO ELECTRIC CO., Ltd., REEVES, F. H., and CRAWFORD, A., Britannia Works, Groveland Road, Tividale, Tipton, Staffordshire. June 14, 1930, No. 18258. [Class 118 (ii).] A timing switch for controlling the usual signal lights at cross-roads &c. is driven by a continuouslyrunning motor and comprises a pair of geared discs 21, 22 driven in opposite directions by a motor 19. Each disc has a projection 34, 35 and a pin 36, 37 insertable into any one of a number of holes. Above the discs is a pair of arms 1, 2 pivoted at 3 and connected by a quick-action spring 6, and carried by the arm 1 is a pair of blades adapted to wipe across two series of contacts. The contacts 12, 13 control the lighting of the green lamps and contacts 15, 16 that of the red lamps, while between the contacts 12, 13 is an intermediate contact in the circuit of the yellow lamps. The operation is as follows: as disc 21 rotates clockwise its projection 34 engages arm 2 and eventually operates the switch. The arm 1 however does not swing over fully but is stopped in the intermediate position by engaging a latch arm, thus causing yellow to replace the green on one route and to supplement the red on the other. At the end of the cautionary period the pin 36 on the disc 21 engages the lower end of the latch to permit release of the switch which then jumps to the furthest pair of contacts. Similar actions occur in the next cycle the disc 22 performing the same functions as disc 21 but in the opposite direction. To vary the relative durations of the two traffic flow periods the disc 22 may be adjusted in angular relation to the disc 21, and by utilizing the other holes for the pins 36, 37 the duration of the cautionary period may be changed.